title: A laboratory study of Salmonella paratyphi-A isolated from an outbreak in 1979.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks / Q000453:epidemiology* / Q000382:microbiology; D006801:Humans; D008875:Middle Aged; D010284:Paratyphoid Fever / Q000453:epidemiology* / Q000382:microbiology; D012482:Salmonella paratyphi A / Q000302:isolation & purification; D012846:Singapore